Application of Zeolite in Agriculture
After many years of research, the importance of zeolites for environmental protection is now clear. These natural minerals are used to improve the quality of drinking water and to decontaminate and purify various types of waste. Typical examples include the removal of hexavalent chromium and arsenic from water, removing radioactive isotopes from radioactive waste, and removing heavy metals and radioactive nucleotides from the soil.
Zeolites help the growth of aquatic organisms and the binding and removal of cyanobacteria. The presence of Zeolites in lakes and other bodies of water balances acidity, enriches oxygen, limits bacteria, and improves the quantitative and qualitative composition of the biocoenosis. The contribution of zeolites to the decontamination of soil and wastewater in industrial areas and their performance in agriculture is also significant.
Today, the use of natural zeolites is increasingly widespread in filtering aquarium water and deodorizing cat and dog litter. It can replace phosphates in detergents, thus reducing the phenomenon of eutrophication. A significant contribution is also observed in the admixture of natural zeolites in olive oil waste, with the aim of adsorbing heavy metals, toxic polyphenols, and odors, and using this mixture as a soil conditioner and fertilizer.
The role of natural zeolites in the transition from conventional to organic farming
Basic research has shown that natural zeolites are a dynamic material for the transition from conventional to the most important form of sustainable agriculture, namely organic farming. It is well known that in the near future there will be a loss of agricultural land due to uncontrolled human intervention, extreme natural phenomena (floods and soil salinity), and the excessive use of agrochemicals. Many acres of agricultural land are already being sacrificed to urban concrete. Unpleasant ecological phenomena, such as the biological gap with the reduction of biomass and the silicification of the pedosphere, are becoming increasingly common in the agro-ecosystem. Synthetic, energy-intensive plant protection products introduce active substances into the environment for which there are no natural degradation mechanisms, thus “poisoning” the pedosphere, hydrosphere, and atmosphere. Elemental chemical fertilization renders useless both the fertile soil, which takes many hundreds of years to form, and the planet’s scarce fresh water.
Agriculture and Organic Farming with Natural Zeolites
Natural zeolites play a leading role in organic farming, offering a natural and effective tool for soil decontamination, fertility enhancement, and plant protection.
Enriching the soil with nitrogen through nitrogen-fixing bacteria and plants.
Improving soil texture with biomass and natural minerals instead of mechanical cultivation.
Plant protection using biological means and natural active substances.
Benefits of Zeolites in the soil
Improvement of structure and texture.
Enriched with phosphorus, magnesium, calcium, and potassium.
Acidity adjustment.
Moisture retention – ideal for dry environments.
Research data
Increase in aggregates up to 75.25%.
Increase in water filtration speed by 10.7 ml in the first 9 minutes.
Increase in soil moisture by 25-32% depending on the amount of zeolite.
Correction of soil acidity up to 0.44 pH units.
Plant Protection & Resistance
Reduction of root rot by 15–30%.
Control of diseases such as Verticillium dahliae.
Spray with 1–2% Zeolite against frost, sunburn, and insects.
Systemic resistance through essential oils and zeolite.
Applications in Agriculture
Incorporation into the soil: 75–450 kg/acre, depending on the crop.
Vine: 0.6–1.5 kg/root.
Spraying: 1–2% solution.
Root watering: 3–5%.
Nutrient absorption
75% Nitrogen (N), 90% Phosphorus (P), 65–70% Potassium (K).
Gradual release of nutrients according to crop needs.
Environmental & Production Benefits
Reduction in fertilizer use by up to 100%.
Production increase from 17–66%.
Quality improvement of up to 46%.
Reduction of pesticides, decontamination from heavy metals and toxins.
Use in Floricultural Mixtures
Add 5–10% natural zeolite.
Combination with composted manure without losing any advantages.
Zeolite as a biological plant protection product
Creation of a film on plants that affects the senses of insects.
Decreased egg laying and larval survival.
Ideal sun protection through spraying with fine powder.
Natural zeolites are a completely natural, safe, and effective means of providing long-term benefits to agricultural production and environmental health.
Their integration into a fully organized ecological agriculture plan guarantees a new era for farming in Greece and internationally.
